GB875188A - Improvements relating to electric motor control systems - Google Patents

Improvements relating to electric motor control systems

Info

Publication number
GB875188A
GB875188A GB3083557A GB3083557A GB875188A GB 875188 A GB875188 A GB 875188A GB 3083557 A GB3083557 A GB 3083557A GB 3083557 A GB3083557 A GB 3083557A GB 875188 A GB875188 A GB 875188A
Authority
GB
United Kingdom
Prior art keywords
armature
rectifier
amplifier
magnetic
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3083557A
Inventor
Thomas Brian Burnett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB3083557A priority Critical patent/GB875188A/en
Publication of GB875188A publication Critical patent/GB875188A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/30—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using magnetic devices with controllable degree of saturation, i.e. transductors
    • H02P7/305—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using magnetic devices with controllable degree of saturation, i.e. transductors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

875,188. Automatic speed-control systems. ENGLISH ELECTRIC CO. Ltd. Dec. 30, 1958 [Oct. 2, 1957], No. 30835/57. Class 38 (4). [Also in Group XXXVII] Under motoring conditions, armature Ma is supplied from main magnetic amplifier MMA through the control winding of a braking magnetic amplifier BMA and rectifier RBI. When, however, the armature current falls below a predetermined value, the braking amplifier provides an output voltage which is applied to the armature through a rectifier RB2 and a non- linear resistor R. This results in reverse current flow through the armature and thus dynamic braking of the motor. The speed of the motor is automatically maintained at a predetermined value during motoring operation by means of a tachometer generator TG in series opposition with a reference source RS across the control winding of a magnetic amplifier CMA which supplies the control winding of the main amplifier through a rectifier RB3. In a modification, two magnetic amplifiers supply the armature, each through a rectifier and a non- linear resistor. The control windings of the amplifiers are in series opposition across a variable-voltage source. The magnetic amplifiers are rendered effective in turn for driving the motor in opposite directions. Fig. 2 (not shown).
GB3083557A 1957-10-02 1957-10-02 Improvements relating to electric motor control systems Expired GB875188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3083557A GB875188A (en) 1957-10-02 1957-10-02 Improvements relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3083557A GB875188A (en) 1957-10-02 1957-10-02 Improvements relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB875188A true GB875188A (en) 1961-08-16

Family

ID=10313889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3083557A Expired GB875188A (en) 1957-10-02 1957-10-02 Improvements relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB875188A (en)

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